body,
h1,
div,
ul,
ol,
li,
dl,
dt,
dd,
p {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

a {
  text-decoration: none;
  color: #666;
}

iframe {
  vertical-align: top;
  border-width: 0;
}

img {
  vertical-align: top;
  outline: none;
}

ul,
ol,
li {
  list-style: none;
}
